.. date: 2023-05-02-17-56-32
.. gh-issue: 99889
.. nonce: l664SU
.. release date: 2023-05-22
.. section: Security
Fixed a security in flaw in :func:`!uu.decode` that could allow for directory
traversal based on the input if no ``out_file`` was specified.
..
.. date: 2023-05-01-15-03-25
.. gh-issue: 104049
.. nonce: b01Y3g
.. section: Security
Do not expose the local on-disk location in directory indexes produced by
:class:`http.client.SimpleHTTPRequestHandler`.
..
.. date: 2023-04-17-14-38-12
.. gh-issue: 99108
.. nonce: 720lG8
.. section: Security
Upgrade built-in :mod:`hashlib` SHA3 implementation to a verified
implementation from the ``HACL*`` project. Used when OpenSSL is not present
or lacks SHA3.
..
.. date: 2023-03-07-20-59-17
.. gh-issue: 102153
.. nonce: 14CLSZ
.. section: Security
:func:`urllib.parse.urlsplit` now strips leading C0 control and space
characters following the specification for URLs defined by WHATWG in
response to :cve:`2023-24329`. Patch by Illia Volochii.
..
.. date: 2023-05-20-23-08-48
.. gh-issue: 102856
.. nonce: Knv9WT
.. section: Core and Builtins
Implement PEP 701 changes in the :mod:`tokenize` module. Patch by Marta
Gómez Macías and Pablo Galindo Salgado
..
.. date: 2023-05-18-13-00-21
.. gh-issue: 104615
.. nonce: h_rtw2
.. section: Core and Builtins
Fix wrong ordering of assignments in code like ``a, a = x, y``. Contributed
by Carl Meyer.
..
.. date: 2023-05-16-19-17-48
.. gh-issue: 104572
.. nonce: eBZQYS
.. section: Core and Builtins
Improve syntax error message for invalid constructs in :pep:`695` contexts
and in annotations when ``from __future__ import annotations`` is active.
..
.. date: 2023-05-14-18-56-54
.. gh-issue: 104482
.. nonce: yaQsv8
.. section: Core and Builtins
Fix three error handling bugs in ast.c's validation of pattern matching
statements.
..
.. date: 2023-05-12-13-30-04
.. gh-issue: 102818
.. nonce: rnv1mH
.. section: Core and Builtins
Do not add a frame to the traceback in the ``sys.setprofile`` and
``sys.settrace`` trampoline functions. This ensures that frames are not
duplicated if an exception is raised in the callback function, and ensures
that frames are not omitted if a C callback is used and that does not add
the frame.
..
.. date: 2023-05-11-15-56-07
.. gh-issue: 104405
.. nonce: tXV5fn
.. section: Core and Builtins
Fix an issue where some :term:`bytecode` instructions could ignore
:pep:`523` when "inlining" calls.
..
.. date: 2023-05-10-20-52-29
.. gh-issue: 103082
.. nonce: y3LG5Q
.. section: Core and Builtins
Change behavior of ``sys.monitoring.events.LINE`` events in
``sys.monitoring``: Line events now occur when a new line is reached
dynamically, instead of using a static approximation, as before. This makes
the behavior very similar to that of "line" events in ``sys.settrace``. This
should ease porting of tools from 3.11 to 3.12.
..
.. date: 2023-05-08-10-34-55
.. gh-issue: 104263
.. nonce: ctHWI8
.. section: Core and Builtins
Fix ``float("nan")`` to produce a quiet NaN on platforms (like MIPS) where
the meaning of the signalling / quiet bit is inverted from its usual
meaning. Also introduce a new macro ``Py_INFINITY`` matching C99's
``INFINITY``, and refactor internals to rely on C99's ``NAN`` and
``INFINITY`` macros instead of hard-coding bit patterns for infinities and
NaNs. Thanks Sebastian Berg.
..
.. date: 2023-05-05-13-18-56
.. gh-issue: 99113
.. nonce: hT1ajK
.. section: Core and Builtins
Multi-phase init extension modules may now indicate that they support
running in subinterpreters that have their own GIL. This is done by using
``Py_MOD_PER_INTERPRETER_GIL_SUPPORTED`` as the value for the
``Py_mod_multiple_interpreters`` module def slot. Otherwise the module, by
default, cannot be imported in such subinterpreters. (This does not affect
the main interpreter or subinterpreters that do not have their own GIL.) In
addition to the isolation that multi-phase init already normally requires,
support for per-interpreter GIL involves one additional constraint:
thread-safety. If the module has external (linked) dependencies and those
libraries have any state that isn't thread-safe then the module must do the
additional work to add thread-safety. This should be an uncommon case.
..
.. date: 2023-05-05-12-14-47
.. gh-issue: 99113
.. nonce: -RAdnv
.. section: Core and Builtins
The GIL is now (optionally) per-interpreter. This is the fundamental change
for PEP 684. This is all made possible by virtue of the isolated state of
each interpreter in the process. The behavior of the main interpreter
remains unchanged. Likewise, interpreters created using
``Py_NewInterpreter()`` are not affected. To get an interpreter with its
own GIL, call ``Py_NewInterpreterFromConfig()``.
..
.. date: 2023-05-03-17-46-47
.. gh-issue: 104108
.. nonce: GOxAYt
.. section: Core and Builtins
Multi-phase init extension modules may now indicate whether or not they
actually support multiple interpreters. By default such modules are
expected to support use in multiple interpreters. In the uncommon case that
one does not, it may use the new ``Py_mod_multiple_interpreters`` module def
slot. A value of ``0`` means the module does not support them. ``1`` means
it does. The default is ``1``.
..
.. date: 2023-05-02-18-29-49
.. gh-issue: 104142
.. nonce: _5Et6I
.. section: Core and Builtins
Fix an issue where :class:`list` or :class:`tuple` repetition could fail to
respect :pep:`683`.
..
.. date: 2023-05-01-21-05-47
.. gh-issue: 104078
.. nonce: vRaBsU
.. section: Core and Builtins
Improve the performance of :c:func:`PyObject_HasAttrString`
..
.. date: 2023-05-01-14-48-29
.. gh-issue: 104066
.. nonce: pzoUZQ
.. section: Core and Builtins
Improve the performance of :func:`hasattr` for module objects with a missing
attribute.
..
.. date: 2023-05-01-14-10-38
.. gh-issue: 104028
.. nonce: dxfh13
.. section: Core and Builtins
Reduce object creation while calling callback function from gc. Patch by
Donghee Na.
..
.. date: 2023-05-01-12-03-52
.. gh-issue: 104018
.. nonce: PFxGS4
.. section: Core and Builtins
Disallow the "z" format specifier in %-format of bytes objects.
..
.. date: 2023-05-01-08-08-05
.. gh-issue: 102213
.. nonce: nfH-4C
.. section: Core and Builtins
Fix performance loss when accessing an object's attributes with
``__getattr__`` defined.
..
.. date: 2023-04-26-17-56-18
.. gh-issue: 103895
.. nonce: ESB6tn
.. section: Core and Builtins
Improve handling of edge cases in showing ``Exception.__notes__``. Ensures
that the messages always end with a newline and that string/bytes are not
exploded over multiple lines. Patch by Carey Metcalfe.
..
.. date: 2023-04-26-16-26-35
.. gh-issue: 103907
.. nonce: kiONZQ
.. section: Core and Builtins
Don't modify the refcounts of known immortal objects (:const:`True`,
:const:`False`, and :const:`None`) in the main interpreter loop.
..
.. date: 2023-04-26-15-14-23
.. gh-issue: 103899
.. nonce: 1pqKPF
.. section: Core and Builtins
Provide a helpful hint in the :exc:`TypeError` message when accidentally
calling a :term:`module` object that has a callable attribute of the same
name (such as :func:`dis.dis` or :class:`datetime.datetime`).
..
.. date: 2023-04-25-20-56-01
.. gh-issue: 103845
.. nonce: V7NYFn
.. section: Core and Builtins
Remove both line and instruction instrumentation before adding new ones for
monitoring, to avoid newly added instrumentation being removed immediately.
..
.. date: 2023-04-25-08-43-11
.. gh-issue: 103763
.. nonce: ZLBZk1
.. section: Core and Builtins
Implement :pep:`695`, adding syntactic support for generic classes, generic
functions, and type aliases.
A new ``type X = ...`` syntax is added for type aliases, which resolves at
runtime to an instance of the new class ``typing.TypeAliasType``. The value
is lazily evaluated and is accessible through the ``.__value__`` attribute.
This is implemented as a new AST node ``ast.TypeAlias``.
New syntax (``class X[T]: ...``, ``def func[T](): ...``) is added for
defining generic functions and classes. This is implemented as a new
``type_params`` attribute on the AST nodes for classes and functions. This
node holds instances of the new AST classes ``ast.TypeVar``,
``ast.ParamSpec``, and ``ast.TypeVarTuple``.
``typing.TypeVar``, ``typing.ParamSpec``, ``typing.ParamSpecArgs``,
``typing.ParamSpecKwargs``, ``typing.TypeVarTuple``, and ``typing.Generic``
are now implemented in C rather than Python.
There are new bytecode instructions ``LOAD_LOCALS``,
``LOAD_CLASSDICT_OR_GLOBAL``, and ``LOAD_CLASSDICT_OR_DEREF`` to support
correct resolution of names in class namespaces.
Patch by Eric Traut, Larry Hastings, and Jelle Zijlstra.
..
.. date: 2023-04-24-21-47-38
.. gh-issue: 103801
.. nonce: WaBanq
.. section: Core and Builtins
Adds three minor linting fixes to the wasm module caught that were caught by
ruff.
..
.. date: 2023-04-24-14-38-16
.. gh-issue: 103793
.. nonce: kqoH6Q
.. section: Core and Builtins
Optimized asyncio Task creation by deferring expensive string formatting
(task name generation) from Task creation to the first time ``get_name`` is
called. This makes asyncio benchmarks up to 5% faster.
..
.. date: 2023-04-21-17-03-14
.. gh-issue: 102310
.. nonce: anLjDx
.. section: Core and Builtins
Change the error range for invalid bytes literals.
..
.. date: 2023-04-21-16-12-41
.. gh-issue: 103590
.. nonce: 7DHDOE
.. section: Core and Builtins
Do not wrap a single exception raised from a ``try-except*`` construct in an
:exc:`ExceptionGroup`.
..
.. date: 2023-04-20-16-17-51
.. gh-issue: 103650
.. nonce: K1MFXR
.. section: Core and Builtins
Change the perf map format to remove the '0x' prefix from the addresses
..
.. date: 2023-04-17-16-00-32
.. gh-issue: 102856
.. nonce: UunJ7y
.. section: Core and Builtins
Implement the required C tokenizer changes for PEP 701. Patch by Pablo
Galindo Salgado, Lysandros Nikolaou, Batuhan Taskaya, Marta Gómez Macías and
sunmy2019.
..
.. date: 2023-04-16-14-38-39
.. gh-issue: 100530
.. nonce: OR6-sn
.. section: Core and Builtins
Clarify the error message raised when the called part of a class pattern
isn't actually a class.
..
.. date: 2023-04-14-22-35-23
.. gh-issue: 101517
.. nonce: 5EqM-S
.. section: Core and Builtins
Fix bug in line numbers of instructions emitted for :keyword:`except*
<except_star>`.
..
.. date: 2023-04-13-00-58-55
.. gh-issue: 103492
.. nonce: P4k0Ay
.. section: Core and Builtins
Clarify :exc:`SyntaxWarning` with literal ``is`` comparison by specifying
which literal is problematic, since comparisons using ``is`` with e.g. ``None``
and bool literals are idiomatic.
..
.. date: 2023-04-12-20-22-03
.. gh-issue: 87729
.. nonce: 99A7UO
.. section: Core and Builtins
Add :opcode:`LOAD_SUPER_ATTR` (and a specialization for
``super().method()``) to speed up ``super().method()`` and ``super().attr``.
This makes ``super().method()`` roughly 2.3x faster and brings it within 20%
of the performance of a simple method call. Patch by Vladimir Matveev and
Carl Meyer.
..
.. date: 2023-04-12-20-18-51
.. gh-issue: 103488
.. nonce: vYvlHD
.. section: Core and Builtins
Change the internal offset distinguishing yield and return target addresses,
so that the instruction pointer is correct for exception handling and other
stack unwinding.
..
.. date: 2023-04-12-19-55-24
.. gh-issue: 82012
.. nonce: FlcJAh
.. section: Core and Builtins
The bitwise inversion operator (``~``) on bool is deprecated. It returns the
bitwise inversion of the underlying ``int`` representation such that
``bool(~True) == True``, which can be confusing. Use ``not`` for logical
negation of bools. In the rare case that you really need the bitwise
inversion of the underlying ``int``, convert to int explicitly ``~int(x)``.
..
.. date: 2023-04-09-22-21-57
.. gh-issue: 77757
.. nonce: _Ow-u2
.. section: Core and Builtins
Exceptions raised in a typeobject's ``__set_name__`` method are no longer
wrapped by a :exc:`RuntimeError`. Context information is added to the
exception as a :pep:`678` note.
..
.. date: 2023-04-09-04-30-02
.. gh-issue: 103333
.. nonce: gKOetS
.. section: Core and Builtins
:exc:`AttributeError` now retains the ``name`` attribute when pickled and
unpickled.
..
.. date: 2023-04-08-17-13-07
.. gh-issue: 103242
.. nonce: ysI1b3
.. section: Core and Builtins
Migrate :meth:`~ssl.SSLContext.set_ecdh_curve` method not to use deprecated
OpenSSL APIs. Patch by Donghee Na.
..
.. date: 2023-04-07-12-18-41
.. gh-issue: 103323
.. nonce: 9802br
.. section: Core and Builtins
We've replaced our use of ``_PyRuntime.tstate_current`` with a thread-local
variable. This is a fairly low-level implementation detail, and there
should be no change in behavior.
..
.. date: 2023-04-02-22-14-57
.. gh-issue: 84436
.. nonce: hvMgwF
.. section: Core and Builtins
The implementation of PEP-683 which adds Immortal Objects by using a fixed
reference count that skips reference counting to make objects truly
immutable.
..
.. date: 2023-04-01-00-46-31
.. gh-issue: 102700
.. nonce: 493NB4
.. section: Core and Builtins
Allow built-in modules to be submodules. This allows submodules to be
statically linked into a CPython binary.
..
.. date: 2023-03-31-17-24-03
.. gh-issue: 103082
.. nonce: isRUcV
.. section: Core and Builtins
Implement :pep:`669` Low Impact Monitoring for CPython.
..
.. date: 2023-03-25-23-24-38
.. gh-issue: 88691
.. nonce: 2SWBd1
.. section: Core and Builtins
Reduce the number of inline :opcode:`CACHE` entries for :opcode:`CALL`.
..
.. date: 2023-03-07-17-37-00
.. gh-issue: 102500
.. nonce: RUSQhz
.. section: Core and Builtins
Make the buffer protocol accessible in Python code using the new
``__buffer__`` and ``__release_buffer__`` magic methods. See :pep:`688` for
details. Patch by Jelle Zijlstra.
..
.. date: 2023-01-30-15-40-29
.. gh-issue: 97933
.. nonce: nUlp3r
.. section: Core and Builtins
:pep:`709`: inline list, dict and set comprehensions to improve performance
and reduce bytecode size.
..
.. date: 2022-11-08-12-36-25
.. gh-issue: 99184
.. nonce: KIaqzz
.. section: Core and Builtins
Bypass instance attribute access of ``__name__`` in ``repr`` of
:class:`weakref.ref`.
..
.. date: 2022-10-06-23-32-11
.. gh-issue: 98003
.. nonce: xWE0Yu
.. section: Core and Builtins
Complex function calls are now faster and consume no C stack space.
..
.. bpo: 39610
.. date: 2020-02-11-15-54-40
.. nonce: fvgsCl
.. section: Core and Builtins
``len()`` for 0-dimensional :class:`memoryview` objects (such as
``memoryview(ctypes.c_uint8(42))``) now raises a :exc:`TypeError`.
Previously this returned ``1``, which was not consistent with ``mem_0d[0]``
raising an :exc:`IndexError`.
..
.. bpo: 31821
.. date: 2019-12-01-12-58-31
.. nonce: 1FNmwk
.. section: Core and Builtins
Fix :func:`!pause_reading` to work when called from :func:`!connection_made`
in :mod:`asyncio`.
..
.. date: 2023-05-17-21-01-48
.. gh-issue: 104600
.. nonce: E6CK35
.. section: Library
:func:`functools.update_wrapper` now sets the ``__type_params__`` attribute
(added by :pep:`695`).
..
.. date: 2023-05-17-20-03-01
.. gh-issue: 104340
.. nonce: kp_XmX
.. section: Library
When an ``asyncio`` pipe protocol loses its connection due to an error, and
the caller doesn't await ``wait_closed()`` on the corresponding
``StreamWriter``, don't log a warning about an exception that was never
retrieved. After all, according to the ``StreamWriter.close()`` docs, the
``wait_closed()`` call is optional ("not mandatory").
..
.. date: 2023-05-17-16-58-23
.. gh-issue: 104555
.. nonce: 5rb5oM
.. section: Library
Fix issue where an :func:`issubclass` check comparing a class ``X`` against
a :func:`runtime-checkable protocol <typing.runtime_checkable>` ``Y`` with
non-callable members would not cause :exc:`TypeError` to be raised if an
:func:`isinstance` call had previously been made comparing an instance of
``X`` to ``Y``. This issue was present in edge cases on Python 3.11, but
became more prominent in 3.12 due to some unrelated changes that were made
to runtime-checkable protocols. Patch by Alex Waygood.
..
.. date: 2023-05-17-08-01-36
.. gh-issue: 104372
.. nonce: jpoWs6
.. section: Library
Refactored the ``_posixsubprocess`` internals to avoid Python C API usage
between fork and exec when marking ``pass_fds=`` file descriptors
inheritable.
..
.. date: 2023-05-17-03-14-07
.. gh-issue: 104484
.. nonce: y6KxL6
.. section: Library
Added *case_sensitive* argument to :meth:`pathlib.PurePath.match`
..
.. date: 2023-05-16-11-02-44
.. gh-issue: 75367
.. nonce: qLWR35
.. section: Library
Fix data descriptor detection in :func:`inspect.getattr_static`.
..
.. date: 2023-05-16-10-07-16
.. gh-issue: 104536
.. nonce: hFWD8f
.. section: Library
Fix a race condition in the internal :mod:`multiprocessing.process` cleanup
logic that could manifest as an unintended ``AttributeError`` when calling
``process.close()``.
..
.. date: 2023-05-12-19-29-28
.. gh-issue: 103857
.. nonce: 0IzSxr
.. section: Library
Update datetime deprecations' stracktrace to point to the calling line
..
.. date: 2023-05-11-21-32-18
.. gh-issue: 101520
.. nonce: l9MjRE
.. section: Library
Move the core functionality of the ``tracemalloc`` module in the ``Python/``
folder, leaving just the module wrapper in ``Modules/``.
..
.. date: 2023-05-11-07-50-00
.. gh-issue: 104392
.. nonce: YSllzt
.. section: Library
Remove undocumented and unused ``_paramspec_tvars`` attribute from some
classes in :mod:`typing`.
..
.. date: 2023-05-11-01-07-42
.. gh-issue: 102613
.. nonce: uMsokt
.. section: Library
Fix issue where :meth:`pathlib.Path.glob` raised :exc:`RecursionError` when
walking deep directory trees.
..
.. date: 2023-05-10-19-33-36
.. gh-issue: 103000
.. nonce: j0KSfD
.. section: Library
Improve performance of :func:`dataclasses.asdict` for the common case where
*dict_factory* is ``dict``. Patch by David C Ellis.
..
.. date: 2023-05-09-18-46-24
.. gh-issue: 104301
.. nonce: gNnbId
.. section: Library
Allow leading whitespace in disambiguated statements in :mod:`pdb`.
..
.. date: 2023-05-08-23-01-59
.. gh-issue: 104139
.. nonce: 83Tnt-
.. section: Library
Teach :func:`urllib.parse.unsplit` to retain the ``"//"`` when assembling
``itms-services://?action=generate-bugs`` style `Apple Platform Deployment
<https://support.apple.com/en-gb/guide/deployment/depce7cefc4d/web>`_ URLs.
..
.. date: 2023-05-08-20-57-17
.. gh-issue: 104307
.. nonce: DSB93G
.. section: Library
:func:`socket.getnameinfo` now releases the GIL while contacting the DNS
server
..
.. date: 2023-05-08-15-50-59
.. gh-issue: 104310
.. nonce: fXVSPY
.. section: Library
Users may now use ``importlib.util.allowing_all_extensions()`` (a context
manager) to temporarily disable the strict compatibility checks for
importing extension modules in subinterpreters.
..
.. date: 2023-05-08-15-39-00
.. gh-issue: 87695
.. nonce: f6iO7v
.. section: Library
Fix issue where :meth:`pathlib.Path.glob` raised :exc:`OSError` when it
encountered a symlink to an overly long path.
..
.. date: 2023-05-07-19-56-45
.. gh-issue: 104265
.. nonce: fVblry
.. section: Library
Prevent possible crash by disallowing instantiation of the
:class:`!_csv.Reader` and :class:`!_csv.Writer` types. The regression was
introduced in 3.10.0a4 with PR 23224 (:issue:`14935`). Patch by Radislav
Chugunov.
..
.. date: 2023-05-06-20-37-46
.. gh-issue: 102613
.. nonce: QZG9iX
.. section: Library
Improve performance of :meth:`pathlib.Path.glob` when expanding recursive
wildcards ("``**``") by merging adjacent wildcards and de-duplicating
results only when necessary.
..
.. date: 2023-05-05-18-52-22
.. gh-issue: 65772
.. nonce: w5P5Wv
.. section: Library
Remove unneeded comments and code in turtle.py.
..
.. date: 2023-05-03-19-22-24
.. gh-issue: 90208
.. nonce: tI00da
.. section: Library
Fixed issue where :meth:`pathlib.Path.glob` returned incomplete results when
it encountered a :exc:`PermissionError`. This method now suppresses all
:exc:`OSError` exceptions, except those raised from calling
:meth:`~pathlib.Path.is_dir` on the top-level path.
..
.. date: 2023-05-03-16-51-53
.. gh-issue: 104144
.. nonce: 653Q0P
.. section: Library
Optimize :class:`asyncio.TaskGroup` when using
:func:`asyncio.eager_task_factory`. Skip scheduling a done callback if a
TaskGroup task completes eagerly.
..
.. date: 2023-05-03-16-50-24
.. gh-issue: 104144
.. nonce: yNkjL8
.. section: Library
Optimize :func:`asyncio.gather` when using
:func:`asyncio.eager_task_factory` to complete eagerly if all fututres
completed eagerly. Avoid scheduling done callbacks for futures that complete
eagerly.
..
.. date: 2023-05-03-03-14-33
.. gh-issue: 104114
.. nonce: RG26RD
.. section: Library
Fix issue where :meth:`pathlib.Path.glob` returns paths using the case of
non-wildcard segments for corresponding path segments, rather than the real
filesystem case.
..
.. date: 2023-05-02-21-05-30
.. gh-issue: 104104
.. nonce: 9tjplT
.. section: Library
Improve performance of :meth:`pathlib.Path.glob` by using
:const:`re.IGNORECASE` to implement case-insensitive matching.
..
.. date: 2023-05-02-20-43-03
.. gh-issue: 104102
.. nonce: vgSdEJ
.. section: Library
Improve performance of :meth:`pathlib.Path.glob` when evaluating patterns
that contain ``'../'`` segments.
..
.. date: 2023-05-02-04-49-45
.. gh-issue: 103822
.. nonce: m0QdAO
.. section: Library
Update the return type of ``weekday`` to the newly added Day attribute
..
.. date: 2023-05-01-19-10-05
.. gh-issue: 103629
.. nonce: 81bpZz
.. section: Library
Update the ``repr`` of :class:`typing.Unpack` according to :pep:`692`.
..
.. date: 2023-05-01-17-58-28
.. gh-issue: 103963
.. nonce: XWlHx7
.. section: Library
Make :mod:`dis` display the names of the args for
:opcode:`!CALL_INTRINSIC_*`.
..
.. date: 2023-05-01-16-43-28
.. gh-issue: 104035
.. nonce: MrJBw8
.. section: Library
Do not ignore user-defined ``__getstate__`` and ``__setstate__`` methods for
slotted frozen dataclasses.
..
.. date: 2023-04-29-18-23-16
.. gh-issue: 103987
.. nonce: sRgALL
.. section: Library
In :mod:`mmap`, fix several bugs that could lead to access to memory-mapped
files after they have been invalidated.
..
.. date: 2023-04-28-19-08-50
.. gh-issue: 103977
.. nonce: msF70A
.. section: Library
Improve import time of :mod:`platform` module.
..
.. date: 2023-04-28-18-04-23
.. gh-issue: 88773
.. nonce: xXCNJw
.. section: Library
Added :func:`turtle.teleport` to the :mod:`turtle` module to move a turtle
to a new point without tracing a line, visible or invisible. Patch by Liam
Gersten.
..
.. date: 2023-04-27-20-03-08
.. gh-issue: 103935
.. nonce: Uaf2M0
.. section: Library
Use :func:`io.open_code` for files to be executed instead of raw
:func:`open`
..
.. date: 2023-04-27-18-46-31
.. gh-issue: 68968
.. nonce: E3tnhy
.. section: Library
Fixed garbled output of :meth:`~unittest.TestCase.assertEqual` when an input
lacks final newline.
..
.. date: 2023-04-27-00-45-41
.. gh-issue: 100370
.. nonce: MgZ3KY
.. section: Library
Fix potential :exc:`OverflowError` in :meth:`sqlite3.Connection.blobopen`
for 32-bit builds. Patch by Erlend E. Aasland.
..
.. date: 2023-04-27-00-05-32
.. gh-issue: 102628
.. nonce: X230E-
.. section: Library
Substitute CTRL-D with CTRL-Z in :mod:`sqlite3` CLI banner when running on
Windows.
..
.. date: 2023-04-26-18-12-13
.. gh-issue: 103636
.. nonce: -KvCgO
.. section: Library
Module-level attributes ``January`` and ``February`` are deprecated from
:mod:`calendar`.
..
.. date: 2023-04-26-15-14-36
.. gh-issue: 103583
.. nonce: iCMDFt
.. section: Library
Isolate :mod:`!_multibytecodec` and codecs extension modules. Patches by
Erlend E. Aasland.
..
.. date: 2023-04-26-09-54-25
.. gh-issue: 103848
.. nonce: aDSnpR
.. section: Library
Add checks to ensure that ``[`` bracketed ``]`` hosts found by
:func:`urllib.parse.urlsplit` are of IPv6 or IPvFuture format.
..
.. date: 2023-04-26-09-38-47
.. gh-issue: 103872
.. nonce: 8LBsDz
.. section: Library
Update the bundled copy of pip to version 23.1.2.
..
.. date: 2023-04-25-22-59-06
.. gh-issue: 99944
.. nonce: pst8iT
.. section: Library
Make :mod:`dis` display the value of oparg of :opcode:`!KW_NAMES`.
..
.. date: 2023-04-25-22-06-00
.. gh-issue: 74940
.. nonce: TOacQ9
.. section: Library
The C.UTF-8 locale is no longer converted to en_US.UTF-8, enabling the use
of UTF-8 encoding on systems which have no locales installed.
..
.. date: 2023-04-25-19-58-13
.. gh-issue: 103861
.. nonce: JeozgD
.. section: Library
Fix ``zipfile.Zipfile`` creating invalid zip files when ``force_zip64`` was
used to add files to them. Patch by Carey Metcalfe.
..
.. date: 2023-04-25-17-03-18
.. gh-issue: 103857
.. nonce: Mr2Cak
.. section: Library
Deprecated :meth:`datetime.datetime.utcnow` and
:meth:`datetime.datetime.utcfromtimestamp`. (Patch by Paul Ganssle)
..
.. date: 2023-04-25-16-31-00
.. gh-issue: 103839
.. nonce: tpyLhI
.. section: Library
Avoid compilation error due to tommath.h not being found when building
Tkinter against Tcl 8.7 built with bundled libtommath.
..
.. date: 2023-04-24-23-07-56
.. gh-issue: 103791
.. nonce: bBPWdS
.. section: Library
:class:`contextlib.suppress` now supports suppressing exceptions raised as
part of an :exc:`ExceptionGroup`. If other exceptions exist on the group,
they are re-raised in a group that does not contain the suppressed
exceptions.
..
.. date: 2023-04-24-16-00-28
.. gh-issue: 90750
.. nonce: da0Xi8
.. section: Library
Use :meth:`datetime.datetime.fromisocalendar` in the implementation of
:meth:`datetime.datetime.strptime`, which should now accept only valid ISO
dates. (Patch by Paul Ganssle)
..
.. date: 2023-04-24-00-34-23
.. gh-issue: 103685
.. nonce: U14jBM
.. section: Library
Prepare :meth:`tkinter.Menu.index` for Tk 8.7 so that it does not raise
``TclError: expected integer but got ""`` when it should return ``None``.
..
.. date: 2023-04-23-15-39-17
.. gh-issue: 81403
.. nonce: zVz9Td
.. section: Library
:class:`urllib.request.CacheFTPHandler` no longer raises :class:`URLError`
if a cached FTP instance is reused. ftplib's endtransfer method calls
voidresp to drain the connection to handle FTP instance reuse properly.
..
.. date: 2023-04-22-22-37-39
.. gh-issue: 103699
.. nonce: NizCjc
.. section: Library
Add ``__orig_bases__`` to non-generic TypedDicts, call-based TypedDicts, and
call-based NamedTuples. Other TypedDicts and NamedTuples already had the
attribute.
..
.. date: 2023-04-22-21-34-13
.. gh-issue: 103693
.. nonce: SBtuLQ
.. section: Library
Add convenience variable feature to :mod:`pdb`
..
.. date: 2023-04-22-12-30-10
.. gh-issue: 92248
.. nonce: NcVTKR
.. section: Library
Deprecate ``type``, ``choices``, and ``metavar`` parameters of
``argparse.BooleanOptionalAction``.
..
.. date: 2023-04-22-11-20-27
.. gh-issue: 89415
.. nonce: YHk760
.. section: Library
Add :mod:`socket` constants for source-specific multicast. Patch by Reese
Hyde.
..
.. date: 2023-04-22-02-41-06
.. gh-issue: 103673
.. nonce: oE7S_k
.. section: Library
:mod:`socketserver` gains ``ForkingUnixStreamServer`` and
``ForkingUnixDatagramServer`` classes. Patch by Jay Berry.
..
.. date: 2023-04-21-10-25-39
.. gh-issue: 103636
.. nonce: YK6NEa
.. section: Library
Added Enum for months and days in the calendar module.
..
.. date: 2023-04-19-16-08-53
.. gh-issue: 84976
.. nonce: HwbzlD
.. section: Library
Create a new ``Lib/_pydatetime.py`` file that defines the Python version of
the ``datetime`` module, and make ``datetime`` import the contents of the
new library only if the C implementation is missing. Currently, the full
Python implementation is defined and then deleted if the C implementation is
not available, slowing down ``import datetime`` unnecessarily.
..
.. date: 2023-04-17-14-47-28
.. gh-issue: 103596
.. nonce: ME1y3_
.. section: Library
Attributes/methods are no longer shadowed by same-named enum members,
although they may be shadowed by enum.property's.
..
.. date: 2023-04-16-19-48-21
.. gh-issue: 103584
.. nonce: 3mBTuM
.. section: Library
Updated ``importlib.metadata`` with changes from ``importlib_metadata`` 5.2
through 6.5.0, including: Support ``installed-files.txt`` for
``Distribution.files`` when present. ``PackageMetadata`` now stipulates an
additional ``get`` method allowing for easy querying of metadata keys that
may not be present. ``packages_distributions`` now honors packages and
modules with Python modules that not ``.py`` sources (e.g. ``.pyc``,
``.so``). Expand protocol for ``PackageMetadata.get_all`` to match the
upstream implementation of ``email.message.Message.get_all`` in
python/typeshed#9620. Deprecated use of ``Distribution`` without defining
abstract methods. Deprecated expectation that
``PackageMetadata.__getitem__`` will return ``None`` for missing keys. In
the future, it will raise a ``KeyError``.
..
.. date: 2023-04-16-18-29-04
.. gh-issue: 103578
.. nonce: fly1wc
.. section: Library
Fixed a bug where :mod:`pdb` crashes when reading source file with different
encoding by replacing :func:`io.open` with :func:`io.open_code`. The new
method would also call into the hook set by :c:func:`PyFile_SetOpenCodeHook`.
..
.. date: 2023-04-15-12-19-14
.. gh-issue: 103556
.. nonce: TEf-2m
.. section: Library
Now creating :class:`inspect.Signature` objects with positional-only
parameter with a default followed by a positional-or-keyword parameter
without one is impossible.
..
.. date: 2023-04-15-11-21-38
.. gh-issue: 103559
.. nonce: a9rYHG
.. section: Library
Update the bundled copy of pip to version 23.1.1.
..
.. date: 2023-04-14-21-16-05
.. gh-issue: 103548
.. nonce: lagdpp
.. section: Library
Improve performance of :meth:`pathlib.Path.absolute` and
:meth:`~pathlib.Path.cwd` by joining paths only when necessary. Also improve
performance of :meth:`pathlib.PurePath.is_absolute` on Posix by skipping
path parsing and normalization.
..
.. date: 2023-04-14-21-12-32
.. gh-issue: 103538
.. nonce: M4FK_v
.. section: Library
Remove ``_tkinter`` module code guarded by definition of the ``TK_AQUA``
macro which was only needed for Tk 8.4.7 or earlier and was never actually
defined by any build system or documented for manual use.
..
.. date: 2023-04-14-06-32-54
.. gh-issue: 103533
.. nonce: n_AfcS
.. section: Library
Update :mod:`cProfile` to use PEP 669 API
..
.. date: 2023-04-13-19-43-15
.. gh-issue: 103525
.. nonce: uY4VYg
.. section: Library
Fix misleading exception message when mixed ``str`` and ``bytes`` arguments
are supplied to :class:`pathlib.PurePath` and :class:`~pathlib.Path`.
..
.. date: 2023-04-13-13-17-47
.. gh-issue: 103489
.. nonce: ZSZgmu
.. section: Library
Add :meth:`~sqlite3.Connection.getconfig` and
:meth:`~sqlite3.Connection.setconfig` to :class:`~sqlite3.Connection` to
make configuration changes to a database connection. Patch by Erlend E.
Aasland.
..
.. date: 2023-04-12-17-59-55
.. gh-issue: 103365
.. nonce: UBEE0U
.. section: Library
Set default Flag boundary to ``STRICT`` and fix bitwise operations.
..
.. date: 2023-04-12-13-04-16
.. gh-issue: 103472
.. nonce: C6bOHv
.. section: Library
Avoid a potential :exc:`ResourceWarning` in
:class:`http.client.HTTPConnection` by closing the proxy / tunnel's CONNECT
response explicitly.
..
.. date: 2023-04-12-06-00-02
.. gh-issue: 103462
.. nonce: w6yBlM
.. section: Library
Fixed an issue with using :meth:`~asyncio.WriteTransport.writelines` in
:mod:`asyncio` to send very large payloads that exceed the amount of data
that can be written in one call to :meth:`socket.socket.send` or
:meth:`socket.socket.sendmsg`, resulting in the remaining buffer being left
unwritten.
..
.. date: 2023-04-11-21-38-39
.. gh-issue: 103449
.. nonce: -nxmhb
.. section: Library
Fix a bug in doc string generation in :func:`dataclasses.dataclass`.
..
.. date: 2023-04-09-06-59-36
.. gh-issue: 103092
.. nonce: vskbro
.. section: Library
Isolate :mod:`!_collections` (apply :pep:`687`). Patch by Erlend E. Aasland.
..
.. date: 2023-04-08-01-33-12
.. gh-issue: 103357
.. nonce: vjin28
.. section: Library
Added support for :class:`logging.Formatter` ``defaults`` parameter to
:func:`logging.config.dictConfig` and :func:`logging.config.fileConfig`.
Patch by Bar Harel.
..
.. date: 2023-04-08-00-48-40
.. gh-issue: 103092
.. nonce: 5EFts0
.. section: Library
Adapt the :mod:`winreg` extension module to :pep:`687`.
..
.. date: 2023-04-07-15-15-40
.. gh-issue: 74690
.. nonce: un84hh
.. section: Library
The performance of :func:`isinstance` checks against
:func:`runtime-checkable protocols <typing.runtime_checkable>` has been
considerably improved for protocols that only have a few members. To achieve
this improvement, several internal implementation details of the
:mod:`typing` module have been refactored, including
``typing._ProtocolMeta.__instancecheck__``,
``typing._is_callable_members_only``, and ``typing._get_protocol_attrs``.
Patches by Alex Waygood.
..
.. date: 2023-04-07-15-09-26
.. gh-issue: 74690
.. nonce: 0f886b
.. section: Library
The members of a runtime-checkable protocol are now considered "frozen" at
runtime as soon as the class has been created. See :ref:`"What's new in
Python 3.12" <whatsnew-typing-py312>` for more details.
..
.. date: 2023-04-06-17-28-36
.. gh-issue: 103256
.. nonce: 1syxfs
.. section: Library
Fixed a bug that caused :mod:`hmac` to raise an exception when the requested
hash algorithm was not available in OpenSSL despite being available
separately as part of ``hashlib`` itself. It now falls back properly to the
built-in. This could happen when, for example, your OpenSSL does not include
SHA3 support and you want to compute ``hmac.digest(b'K', b'M',
'sha3_256')``.
..
.. date: 2023-04-06-16-55-51
.. gh-issue: 102778
.. nonce: BWeAmE
.. section: Library
Support ``sys.last_exc`` in :mod:`idlelib`.
..
.. date: 2023-04-06-04-35-59
.. gh-issue: 103285
.. nonce: rCZ9-G
.. section: Library
Improve performance of :func:`ast.get_source_segment`.
..
.. date: 2023-04-05-01-28-53
.. gh-issue: 103225
.. nonce: QD3JVU
.. section: Library
Fix a bug in :mod:`pdb` when displaying line numbers of module-level source
code.
..
.. date: 2023-04-04-21-44-25
.. gh-issue: 103092
.. nonce: Dz0_Xn
.. section: Library
Adapt the :mod:`msvcrt` extension module to :pep:`687`.
..
.. date: 2023-04-04-21-27-51
.. gh-issue: 103092
.. nonce: 7s7Bzf
.. section: Library
Adapt the :mod:`winsound` extension module to :pep:`687`.
..
.. date: 2023-04-04-12-43-38
.. gh-issue: 93910
.. nonce: jurMzv
.. section: Library
Remove deprecation of enum ``member.member`` access.
..
.. date: 2023-04-03-23-44-34
.. gh-issue: 102978
.. nonce: gy9eVk
.. section: Library
Fixes :func:`unittest.mock.patch` not enforcing function signatures for
methods decorated with ``@classmethod`` or ``@staticmethod`` when patch is
called with ``autospec=True``.
..
.. date: 2023-04-03-23-43-12
.. gh-issue: 103092
.. nonce: 3xqk4y
.. section: Library
Isolate :mod:`!_socket` (apply :pep:`687`). Patch by Erlend E. Aasland.
..
.. date: 2023-04-03-22-02-35
.. gh-issue: 100479
.. nonce: kNBjQm
.. section: Library
Add :meth:`pathlib.PurePath.with_segments`, which creates a path object from
arguments. This method is called whenever a derivative path is created, such
as from :attr:`pathlib.PurePath.parent`. Subclasses may override this method
to share information between path objects.
..
.. date: 2023-04-03-21-08-53
.. gh-issue: 103220
.. nonce: OW_Bj5
.. section: Library
Fix issue where :func:`os.path.join` added a slash when joining onto an
incomplete UNC drive with a trailing slash on Windows.
..
.. date: 2023-04-02-23-05-22
.. gh-issue: 103204
.. nonce: bbDmu0
.. section: Library
Fixes :mod:`http.server` accepting HTTP requests with HTTP version numbers
preceded by '+', or '-', or with digit-separating '_' characters. The
length of the version numbers is also constrained.
..
.. date: 2023-04-02-22-04-26
.. gh-issue: 75586
.. nonce: 526iJm
.. section: Library
Fix various Windows-specific issues with ``shutil.which``.
..
.. date: 2023-04-02-17-51-08
.. gh-issue: 103193
.. nonce: xrZbM1
.. section: Library
Improve performance of :func:`inspect.getattr_static`. Patch by Alex
Waygood.
..
.. date: 2023-04-01-23-01-31
.. gh-issue: 103176
.. nonce: FBsdxa
.. section: Library
:func:`sys._current_exceptions` now returns a mapping from thread-id to an
exception instance, rather than to a ``(typ, exc, tb)`` tuple.
..
.. date: 2023-03-31-01-13-00
.. gh-issue: 103143
.. nonce: 6eMluy
.. section: Library
Polish the help messages and docstrings of :mod:`pdb`.
..
.. date: 2023-03-28-09-13-31
.. gh-issue: 103015
.. nonce: ETTfNf
.. section: Library
Add *entrypoint* keyword-only parameter to
:meth:`sqlite3.Connection.load_extension`, for overriding the SQLite
extension entry point. Patch by Erlend E. Aasland.
..
.. date: 2023-03-24-20-49-48
.. gh-issue: 103000
.. nonce: 6eVNZI
.. section: Library
Improve performance of :func:`dataclasses.astuple` and
:func:`dataclasses.asdict` in cases where the contents are common Python
types.
..
.. date: 2023-03-23-15-24-38
.. gh-issue: 102953
.. nonce: YR4KaK
.. section: Library
The extraction methods in :mod:`tarfile`, and :func:`shutil.unpack_archive`,
have a new a *filter* argument that allows limiting tar features than may be
surprising or dangerous, such as creating files outside the destination
directory. See :ref:`tarfile-extraction-filter` for details.
..
.. date: 2023-03-15-12-18-07
.. gh-issue: 97696
.. nonce: DtnpIC
.. section: Library
Implemented an eager task factory in asyncio. When used as a task factory on
an event loop, it performs eager execution of coroutines. Coroutines that
are able to complete synchronously (e.g. return or raise without blocking)
are returned immediately as a finished task, and the task is never scheduled
to the event loop. If the coroutine blocks, the (pending) task is scheduled
and returned.
..
.. date: 2023-03-15-00-37-43
.. gh-issue: 81079
.. nonce: heTAod
.. section: Library
Add *case_sensitive* keyword-only argument to :meth:`pathlib.Path.glob` and
:meth:`~pathlib.Path.rglob`.
..
.. date: 2023-03-14-11-20-19
.. gh-issue: 101819
.. nonce: 0-h0it
.. section: Library
Isolate the :mod:`io` extension module by applying :pep:`687`. Patch by
Kumar Aditya, Victor Stinner, and Erlend E. Aasland.
..
.. date: 2023-03-08-02-45-46
.. gh-issue: 91896
.. nonce: kgON_a
.. section: Library
Deprecate :class:`collections.abc.ByteString`
..
.. date: 2023-03-06-18-49-57
.. gh-issue: 101362
.. nonce: eSSy6L
.. section: Library
Speed up :class:`pathlib.Path` construction by omitting the path anchor from
the internal list of path parts.
..
.. date: 2023-02-21-14-57-34
.. gh-issue: 102114
.. nonce: uUDQzb
.. section: Library
Functions in the :mod:`dis` module that accept a source code string as
argument now print a more concise traceback when the string contains a
syntax or indentation error.
..
.. date: 2023-02-19-12-37-08
.. gh-issue: 62432
.. nonce: GnBFIB
.. section: Library
The :mod:`unittest` runner will now exit with status code 5 if no tests were
run. It is common for test runner misconfiguration to fail to find any
tests, this should be an error.
..
.. date: 2023-02-17-21-14-40
.. gh-issue: 78079
.. nonce: z3Szr6
.. section: Library
Fix incorrect normalization of UNC device path roots, and partial UNC share
path roots, in :class:`pathlib.PurePath`. Pathlib no longer appends a
trailing slash to such paths.
..
.. date: 2023-02-11-21-18-10
.. gh-issue: 85984
.. nonce: nvzOD0
.. section: Library
Add :func:`tty.cfmakeraw` and :func:`tty.cfmakecbreak` to :mod:`tty` and
modernize, the behavior of :func:`tty.setraw` and :func:`tty.setcbreak` to
use POSIX.1-2017 Chapter 11 "General Terminal Interface" flag masks by
default.
..
.. date: 2023-02-11-15-01-32
.. gh-issue: 101688
.. nonce: kwXmfM
.. section: Library
Implement :func:`types.get_original_bases` to provide further introspection
for types.
..
.. date: 2023-02-09-22-24-34
.. gh-issue: 101640
.. nonce: oFuEpB
.. section: Library
:class:`argparse.ArgumentParser` now catches errors when writing messages,
such as when :data:`sys.stderr` is ``None``. Patch by Oleg Iarygin.
..
.. date: 2023-02-06-16-45-18
.. gh-issue: 83861
.. nonce: mMbIU3
.. section: Library
Fix datetime.astimezone method return value when invoked on a naive datetime
instance that represents local time falling in a timezone transition gap.
PEP 495 requires that instances with fold=1 produce earlier times than those
with fold=0 in this case.
..
.. date: 2023-01-22-14-53-12
.. gh-issue: 89550
.. nonce: c1U23f
.. section: Library
Decrease execution time of some :mod:`gzip` file writes by 15% by adding
more appropriate buffering.
..
.. date: 2023-01-14-17-54-56
.. gh-issue: 95299
.. nonce: vUhpKz
.. section: Library
Remove the bundled setuptools wheel from ``ensurepip``, and stop installing
setuptools in environments created by ``venv``.
..
.. date: 2022-11-10-16-26-47
.. gh-issue: 99353
.. nonce: DQFjnt
.. section: Library
Respect the :class:`http.client.HTTPConnection` ``.debuglevel`` flag in
:class:`urllib.request.AbstractHTTPHandler` when its constructor parameter
``debuglevel`` is not set. And do the same for ``*HTTPS*``.
..
.. date: 2022-10-21-17-20-57
.. gh-issue: 98040
.. nonce: 3btbmA
.. section: Library
Remove the long-deprecated ``imp`` module.
..
.. date: 2022-10-21-16-23-31
.. gh-issue: 97850
.. nonce: N46coo
.. section: Library
Deprecate :func:`!pkgutil.find_loader` and :func:`!pkgutil.get_loader` in
favor of :func:`importlib.util.find_spec`.
..
.. date: 2022-10-20-14-03-58
.. gh-issue: 94473
.. nonce: pzGX73
.. section: Library
Flatten arguments in :meth:`tkinter.Canvas.coords`. It now accepts not only
``x1, y1, x2, y2, ...`` and ``[x1, y1, x2, y2, ...]``, but also ``(x1, y1),
(x2, y2), ...`` and ``[(x1, y1), (x2, y2), ...]``.
..
.. date: 2022-10-09-14-47-42
.. gh-issue: 98040
.. nonce: IN3qab
.. section: Library
Remove more deprecated importlib APIs: ``find_loader()``, ``find_module()``,
``importlib.abc.Finder``, ``pkgutil.ImpImporter``, ``pkgutil.ImpLoader``.
..
.. date: 2022-09-07-09-32-07
.. gh-issue: 96522
.. nonce: t73oqp
.. section: Library
Fix potential deadlock in pty.spawn()
..
.. date: 2022-09-03-09-24-02
.. gh-issue: 96534
.. nonce: EU4Oxv
.. section: Library
Support divert(4) added in FreeBSD 14.
..
.. date: 2022-08-27-21-41-41
.. gh-issue: 87474
.. nonce: 9X-kxt
.. section: Library
Fix potential file descriptor leaks in :class:`subprocess.Popen`.
..
.. date: 2022-07-16-17-15-29
.. gh-issue: 94906
.. nonce: C4G8DG
.. section: Library
Support multiple steps in :func:`math.nextafter`. Patch by Shantanu Jain and
Matthias Gorgens.
..
.. date: 2022-07-06-11-10-37
.. gh-issue: 51574
.. nonce: sveUeD
.. section: Library
Make :func:`tempfile.mkdtemp` return absolute paths when its *dir* parameter
is relative.
..
.. date: 2022-07-03-23-13-28
.. gh-issue: 94518
.. nonce: 511Tbh
.. section: Library
Convert private :meth:`!_posixsubprocess.fork_exec` to use Argument Clinic.
..
.. date: 2022-05-02-16-21-05
.. gh-issue: 92184
.. nonce: hneGVW
.. section: Library
When creating zip files using :mod:`zipfile`, ``os.altsep``, if not
``None``, will always be treated as a path separator even when it is not
``/``. Patch by Carey Metcalfe.
..
.. bpo: 46797
.. date: 2022-02-19-14-19-34
.. nonce: 6BXZX4
.. section: Library
Deprecation warnings are now emitted for :class:`!ast.Num`,
:class:`!ast.Bytes`, :class:`!ast.Str`, :class:`!ast.NameConstant` and
:class:`!ast.Ellipsis`. These have been documented as deprecated since
Python 3.8, and will be removed in Python 3.14.
..
.. bpo: 44844
.. date: 2021-12-03-23-00-56
.. nonce: tvg2VY
.. section: Library
Enables :mod:`webbrowser` to detect and launch Microsoft Edge browser.
..
.. bpo: 45606
.. date: 2021-11-19-23-37-18
.. nonce: UW5XE1
.. section: Library
Fixed the bug in :meth:`pathlib.Path.glob` -- previously a dangling symlink
would not be found by this method when the pattern is an exact match, but
would be found when the pattern contains a wildcard or the recursive
wildcard (``**``). With this change, a dangling symlink will be found in
both cases.
..
.. bpo: 23041
.. date: 2021-11-07-15-31-25
.. nonce: 564i32
.. section: Library
Add :const:`~csv.QUOTE_STRINGS` and :const:`~csv.QUOTE_NOTNULL` to the suite
of :mod:`csv` module quoting styles.
..
.. bpo: 24964
.. date: 2021-05-16-14-28-30
.. nonce: Oa5Ie_
.. section: Library
Added :meth:`http.client.HTTPConnection.get_proxy_response_headers` that
provides access to the HTTP headers on a proxy server response to the
``CONNECT`` request.
..
.. bpo: 17258
.. date: 2020-05-25-12-42-36
.. nonce: lf2554
.. section: Library
:mod:`multiprocessing` now supports stronger HMAC algorithms for
inter-process connection authentication rather than only HMAC-MD5.
..
.. bpo: 39744
.. date: 2020-02-25-00-43-22
.. nonce: hgK689
.. section: Library
Make :func:`asyncio.subprocess.Process.communicate` close the subprocess's
stdin even when called with ``input=None``.
..
.. bpo: 22708
.. date: 2018-07-16-14-10-29
.. nonce: 592iRR
.. section: Library
http.client CONNECT method tunnel improvements: Use HTTP 1.1 protocol; send
a matching Host: header with CONNECT, if one is not provided; convert IDN
domain names to Punycode. Patch by Michael Handler.
..
.. date: 2023-05-14-12-11-28
.. gh-issue: 67056
.. nonce: nVC2Rf
.. section: Documentation
Document that the effect of registering or unregistering an :mod:`atexit`
cleanup function from within a registered cleanup function is undefined.
..
.. date: 2023-04-26-23-55-31
.. gh-issue: 103629
.. nonce: -0reqn
.. section: Documentation
Mention the new way of typing ``**kwargs`` with ``Unpack`` and ``TypedDict``
introduced in :pep:`692`.
..
.. date: 2023-04-25-22-58-08
.. gh-issue: 48241
.. nonce: l1Gxxh
.. section: Documentation
Clarifying documentation about the url parameter to urllib.request.urlopen
and urllib.request.Request needing to be encoded properly.
..
.. date: 2023-03-10-04-59-35
.. gh-issue: 86094
.. nonce: zOYdy8
.. section: Documentation
Add support for Unicode Path Extra Field in ZipFile. Patch by Yeojin Kim and
Andrea Giudiceandrea
..
.. date: 2023-03-07-23-30-29
.. gh-issue: 99202
.. nonce: hhiAJF
.. section: Documentation
Fix extension type from documentation for compiling in C++20 mode
..
.. date: 2023-05-15-02-22-44
.. gh-issue: 104494
.. nonce: Bkrbfn
.. section: Tests
Update ``test_pack_configure_in`` and ``test_place_configure_in`` for
changes to error message formatting in Tk 8.7.
..
.. date: 2023-05-14-03-00-00
.. gh-issue: 104461
.. nonce: Rmex11
.. section: Tests
Run test_configure_screen on X11 only, since the ``DISPLAY`` environment
variable and ``-screen`` option for toplevels are not useful on Tk for Win32
or Aqua.
..
.. date: 2023-04-25-12-19-37
.. gh-issue: 86275
.. nonce: -RoLIt
.. section: Tests
Added property-based tests to the :mod:`zoneinfo` tests, along with stubs
for the ``hypothesis`` interface. (Patch by Paul Ganssle)
..
.. date: 2023-04-08-00-50-23
.. gh-issue: 103329
.. nonce: M38tqF
.. section: Tests
Regression tests for the behaviour of ``unittest.mock.PropertyMock`` were
added.
..
.. date: 2023-03-17-22-00-47
.. gh-issue: 102795
.. nonce: z21EoC
.. section: Tests
fix use of poll in test_epoll's test_control_and_wait
..
.. date: 2022-11-06-18-42-38
.. gh-issue: 75729
.. nonce: uGYJrv
.. section: Tests
Fix the :func:`os.spawn* <os.spawnl>` tests failing on Windows when the
working directory or interpreter path contains spaces.
..
.. date: 2023-05-20-16-09-59
.. gh-issue: 101282
.. nonce: FvRARb
.. section: Build
BOLT optimization is now applied to the libpython shared library if building
a shared library. BOLT instrumentation and application settings can now be
influenced via the ``BOLT_INSTRUMENT_FLAGS`` and ``BOLT_APPLY_FLAGS``
configure variables.
..
.. date: 2023-05-15-09-34-08
.. gh-issue: 99017
.. nonce: nToOQu
.. section: Build
``PYTHON_FOR_REGEN`` now require Python 3.10 or newer.
..
.. date: 2023-05-14-19-00-19
.. gh-issue: 104490
.. nonce: 1tA4AF
.. section: Build
Define ``.PHONY`` / virtual make targets consistently and properly.
..
.. date: 2023-05-04-10-56-14
.. gh-issue: 104106
.. nonce: -W9BJS
.. section: Build
Add gcc fallback of mkfifoat/mknodat for macOS. Patch by Donghee Na.
..
.. date: 2023-04-14-10-24-37
.. gh-issue: 103532
.. nonce: H1djkd
.. section: Build
The ``TKINTER_PROTECT_LOADTK`` macro is no longer defined or used in the
``_tkinter`` module. It was previously only defined when building against
Tk 8.4.13 and older, but Tk older than 8.5.12 has been unsupported since
gh-issue-91152.
..
.. date: 2023-02-11-05-31-05
.. gh-issue: 99069
.. nonce: X4LDvY
.. section: Build
Extended workaround defining ``static_assert`` when missing from the libc
headers to all clang and gcc builds. In particular, this fixes building on
macOS <= 10.10.
..
.. date: 2022-12-18-07-24-44
.. gh-issue: 100220
.. nonce: BgSV7C
.. section: Build
Changed the default value of the ``SHELL`` Makefile variable from
``/bin/sh`` to ``/bin/sh -e`` to ensure that complex recipes correctly fail
after an error. Previously, ``make install`` could fail to install some
files and yet return a successful result.
..
.. date: 2022-06-20-15-15-11
.. gh-issue: 90656
.. nonce: kFBbKe
.. section: Build
Add platform triplets for 64-bit LoongArch:
* loongarch64-linux-gnusf
* loongarch64-linux-gnuf32
* loongarch64-linux-gnu
Patch by Zhang Na.
..
.. date: 2023-05-18-22-46-03
.. gh-issue: 104623
.. nonce: HJZhm1
.. section: Windows
Update Windows installer to use SQLite 3.42.0.
..
.. date: 2023-04-24-15-51-11
.. gh-issue: 82814
.. nonce: GI3UkZ
.. section: Windows
Fix a potential ``[Errno 13] Permission denied`` when using
:func:`shutil.copystat` within Windows Subsystem for Linux (WSL) on a
mounted filesystem by adding ``errno.EACCES`` to the list of ignored errors
within the internal implementation.
..
.. date: 2023-04-12-10-49-21
.. gh-issue: 103088
.. nonce: Yjj-qJ
.. section: Windows
Fix virtual environment :file:`activate` script having incorrect line
endings for Cygwin.
..
.. date: 2023-04-11-09-22-22
.. gh-issue: 103088
.. nonce: 6AJEuR
.. section: Windows
Fixes venvs not working in bash on Windows across different disks
..
.. date: 2023-03-24-11-25-28
.. gh-issue: 102997
.. nonce: dredy2
.. section: Windows
Update Windows installer to use SQLite 3.41.2.
..
.. date: 2023-03-18-21-38-00
.. gh-issue: 88013
.. nonce: Z3loxC
.. section: Windows
Fixed a bug where :exc:`TypeError` was raised when calling
:func:`ntpath.realpath` with a bytes parameter in some cases.
..
.. date: 2023-05-21-23-54-52
.. gh-issue: 99834
.. nonce: 6ANPts
.. section: macOS
Update macOS installer to Tcl/Tk 8.6.13.
..
.. date: 2023-05-18-22-31-49
.. gh-issue: 104623
.. nonce: 6h7Xfx
.. section: macOS
Update macOS installer to SQLite 3.42.0.
..
.. date: 2023-05-18-08-52-04
.. gh-issue: 103545
.. nonce: pi5k2N
.. section: macOS
Add ``os.PRIO_DARWIN_THREAD``, ``os.PRIO_DARWIN_PROCESS``,
``os.PRIO_DARWIN_BG`` and ``os.PRIO_DARWIN_NONUI``. These can be used with
``os.setpriority`` to run the process at a lower priority and make use of
the efficiency cores on Apple Silicon systems.
..
.. date: 2023-05-04-21-47-59
.. gh-issue: 104180
.. nonce: lEJCwd
.. section: macOS
Support reading SOCKS proxy configuration from macOS System Configuration.
Patch by Sam Schott.
..
.. date: 2023-04-24-18-37-48
.. gh-issue: 60436
.. nonce: in-IyF
.. section: macOS
update curses textbox to additionally handle backspace using the
``curses.ascii.DEL`` key press.
..
.. date: 2023-03-24-11-20-47
.. gh-issue: 102997
.. nonce: ZgQkbq
.. section: macOS
Update macOS installer to SQLite 3.41.2.
..
.. date: 2023-05-17-17-32-21
.. gh-issue: 104499
.. nonce: hNeqV4
.. section: IDLE
Fix completions for Tk Aqua 8.7 (currently blank).
..
.. date: 2023-05-17-15-11-11
.. gh-issue: 104496
.. nonce: wjav-y
.. section: IDLE
About prints both tcl and tk versions if different (expected someday).
..
.. date: 2023-04-30-20-01-18
.. gh-issue: 88496
.. nonce: y65vUb
.. section: IDLE
Fix IDLE test hang on macOS.
..
.. date: 2023-05-11-15-12-11
.. gh-issue: 104389
.. nonce: EiOhB3
.. section: Tools/Demos
Argument Clinic C converters now accept the ``unused`` keyword, for wrapping
a parameter with :c:macro:`Py_UNUSED`. Patch by Erlend E. Aasland.
..
.. date: 2023-05-18-20-53-05
.. gh-issue: 101291
.. nonce: ZBh9aR
.. section: C API
Added unstable C API for extracting the value of "compact" integers:
:c:func:`PyUnstable_Long_IsCompact` and
:c:func:`PyUnstable_Long_CompactValue`.
..
.. date: 2023-05-02-21-05-54
.. gh-issue: 104109
.. nonce: 0tnDZV
.. section: C API
We've added ``Py_NewInterpreterFromConfig()`` and ``PyInterpreterConfig`` to
the public C-API (but not the stable ABI; not yet at least). The new
function may be used to create a new interpreter with various features
configured. The function was added to support PEP 684 (per-interpreter
GIL).
..
.. date: 2023-04-28-18-04-38
.. gh-issue: 103968
.. nonce: EnVvOx
.. section: C API
:c:func:`PyType_FromSpec` and its variants now allow creating classes whose
metaclass overrides :c:member:`~PyTypeObject.tp_new`. The ``tp_new`` is
ignored. This behavior is deprecated and will be disallowed in 3.14+. The
new :c:func:`PyType_FromMetaclass` already disallows it.
..
.. date: 2023-04-24-10-31-59
.. gh-issue: 103743
.. nonce: 2xYA1K
.. section: C API
Add :c:func:`PyUnstable_Object_GC_NewWithExtraData` function that can be
used to allocate additional memory after an object for data not managed by
Python.
..
.. date: 2023-04-14-23-05-52
.. gh-issue: 103295
.. nonce: GRHY1Z
.. section: C API
Introduced :c:func:`PyUnstable_WritePerfMapEntry`,
:c:func:`PyUnstable_PerfMapState_Init` and
:c:func:`PyUnstable_PerfMapState_Fini`. These allow extension modules (JIT
compilers in particular) to write to perf-map files in a thread safe manner.
The :doc:`../howto/perf_profiling` also uses these APIs to write entries in
the perf-map file.
..
.. date: 2023-04-13-16-54-00
.. gh-issue: 103509
.. nonce: A26Qu8
.. section: C API
Added C API for extending types whose instance memory layout is opaque:
:c:member:`PyType_Spec.basicsize` can now be zero or negative,
:c:func:`PyObject_GetTypeData` can be used to get subclass-specific data,
and :c:macro:`Py_TPFLAGS_ITEMS_AT_END` can be used to safely extend
variable-size objects. See :pep:`697` for details.
..
.. date: 2023-03-28-12-31-51
.. gh-issue: 103091
.. nonce: CzZyaZ
.. section: C API
Add a new C-API function to eagerly assign a version tag to a PyTypeObject:
``PyUnstable_Type_AssignVersionTag()``.
..
.. date: 2023-02-09-23-09-29
.. gh-issue: 101408
.. nonce: _paFIF
.. section: C API
:c:macro:`PyObject_GC_Resize` should calculate preheader size if needed.
Patch by Donghee Na.
..
.. date: 2022-10-29-10-13-20
.. gh-issue: 98836
.. nonce: Cy5h_z
.. section: C API
Add support of more formatting options (left aligning, octals, uppercase
hexadecimals, :c:type:`intmax_t`, :c:type:`ptrdiff_t`, :c:type:`wchar_t` C
strings, variable width and precision) in :c:func:`PyUnicode_FromFormat` and
:c:func:`PyUnicode_FromFormatV`.
..
.. date: 2022-09-15-15-21-34
.. gh-issue: 96803
.. nonce: ynBKIS
.. section: C API
Add unstable C-API functions to get the code object, lasti and line number
from the internal ``_PyInterpreterFrame`` in the limited API. The functions
are:
* ``PyCodeObject * PyUnstable_InterpreterFrame_GetCode(struct _PyInterpreterFrame *frame)``
* ``int PyUnstable_InterpreterFrame_GetLasti(struct _PyInterpreterFrame *frame)``
* ``int PyUnstable_InterpreterFrame_GetLine(struct _PyInterpreterFrame *frame)``
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